CN207967278U - Double-frequency broadband four-arm spiral antenna - Google Patents
Double-frequency broadband four-arm spiral antenna Download PDFInfo
- Publication number
- CN207967278U CN207967278U CN201820118077.2U CN201820118077U CN207967278U CN 207967278 U CN207967278 U CN 207967278U CN 201820118077 U CN201820118077 U CN 201820118077U CN 207967278 U CN207967278 U CN 207967278U
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- Prior art keywords
- damping
- damping trough
- pcb board
- double
- fixedly connected
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Abstract
The utility model discloses a kind of double-frequency broadband four-arm spiral antennas, including pcb board, the top of the pcb board is fixedly connected with cylindric solid dielectric, spirally around printing, there are four monopole radiation arms for the wall outer surface of the cylindrical shape dielectric, the pcb board bottom side is equipped with support base, the support base top middle portion is equipped with the first damping trough, the center bottom of the pcb board is fixedly connected with snubber block, the snubber block is located in the first damping trough and the bottom end of snubber block is slidably connected with the first damping groove bottom wall, at left and right sides of first damping trough the second damping trough is equipped on side wall, two second damping trough one end are equipped with movable block, it is equipped with decoupling rod inside two movable blocks.The utility model to pcb board and the shaking force of cylindric solid dielectric suffered horizontal direction in transportational process equipped with the first damping trough, the first spring, yielding rubber ball by providing cushioning effect.
Description
Technical field
The utility model is related to antenna technical field more particularly to a kind of double-frequency broadband four-arm spiral antennas.
Background technology
Double-frequency broadband four-arm spiral antenna is by the similar antenna of two auxiliary structures of the different frequency range that will work with inside and outside total
The mode of axis forms an entirety to realize a kind of antenna of two-frequency operation, and typical helical antenna is generally pylindrical, usually
It is entwined by wire, it is made of four spiral arms, and every length is quarter-wave integral multiple.Four spirals
The current amplitude of arm feed end is equal, and phase differs 90 ° successively, and this requires feeding networks while meeting power distribution,
It is contemplated that phase-shift condition limitation.
Through retrieval, Chinese patent grant number CN 206610909U disclose a kind of double-frequency broadband four-arm spiral antenna, including
Pcb board, cylindric dielectric and the antenna metal in pcb board lower surface is set.The side wall ring of cylindric dielectric is around printing
Metal copper post is arranged in the end of four monopole radiation arms, each monopole radiation arm, and the bottom of cylindric dielectric passes through
Four metal copper posts are fixed on pcb board, monopole radiation arm include the first coupling line, the second coupling line, the first microstrip line and
Second microstrip line.The connecting pin of first coupling line connects one end of the first microstrip line, and the other end of the first microstrip line connects one
Metal copper post；The connecting pin of second coupling line connects one end of the second microstrip line, and the other end connection first of the second microstrip line is micro-
Junction with line and the first coupling line.The utility model is arranged four monopoles using the side wall of cylindric dielectric and radiates
Arm, using the coupling line of two Length discrepancies as monopole radiation arm, antenna has good directional diagram, circular polarisation and double frequency special
Property.
The prior art has the following disadvantages：Since the internal structure of four-arm spiral antenna is more accurate and existing
Four-arm spiral antenna be not provided with damping, buffering mechanism, be easy to be damaged when being given a shock during transport, to
Cause larger economic loss.
Utility model content
The purpose of this utility model is to provide a kind of double-frequency broadband four-arm spiral antennas, have good damping effect, antenna
Advantage with long service life solves existing four-arm spiral antenna and is not provided with damping, buffering mechanism, during transport
It is easy to be damaged when being given a shock, the problem of to cause larger economic loss.
According to a kind of double-frequency broadband four-arm spiral antenna of the utility model embodiment, including pcb board, the pcb board
Top is fixedly connected with cylindric solid dielectric, and the wall outer surface of the cylindrical shape dielectric is spirally surround there are four printings
Monopole radiation arm, the pcb board bottom side are equipped with support base, and the support base top middle portion is equipped with the first damping trough, institute
The center bottom for stating pcb board is fixedly connected with snubber block, the snubber block be located in the first damping trough and the bottom end of snubber block with
First damping groove bottom wall is slidably connected, and the second damping trough is equipped on side wall at left and right sides of first damping trough, described in two
Second damping trough one end is equipped with movable block, and decoupling rod is equipped with inside two movable blocks, and one end of the decoupling rod is stretched
Enter in the second damping trough and the other end is fixedly connected with snubber block, the decoupling rod outer sheath of the movable block side is equipped with the first bullet
Spring, is equipped with third damping trough on the side wall of first damping trough front and rear sides, horizontal in the third damping trough to be equipped with slide bar,
Described slide bar one end is equipped with yielding rubber ball, and the slide bar other end is fixedly connected with connecting rod and one end of connecting rod is consolidated with snubber block
Fixed connection.
Further, the outer sheath of the support base is equipped with set frame, and sole piece is equipped in the middle part of the set frame inner bottom wall, described
Support base center bottom is fixedly connected with jacking block, and level is equipped with connecting rod, the connecting rod between the side wall of the set frame both sides
Both ends on the outside of be equipped with damping frame, be arranged with sliding shoe at left and right sides of the connecting rod, the sliding shoe side up and down
Both ends are equipped with fixed link, and two fixed links are stretched into damping frame and fixed with the sliding bar being set on the outside of connecting rod
Connection, the upper and lower ends of the sliding bar side are equipped with second spring.
Further, the upper and lower ends of the sliding bar are slidably connected with the roof of damping frame with bottom wall respectively.
Further, the both ends of the second spring are fixedly connected with sliding bar, set frame respectively.
Further, two equal hinge connections of sliding shoe there are two rotating bar and two rotating bars respectively with jacking block with
Sole piece hinge connection.
Further, the slide bar is integrally formed with connecting rod.
The utility model has an advantageous effect in that compared with prior art：
1, this kind of double-frequency broadband four-arm spiral antenna is by being equipped with the first damping trough, the first spring, yielding rubber ball to PCB
Plate and the shaking force of cylindric solid dielectric suffered horizontal direction in transportational process provide cushioning effect, and the first spring can be right
The horizontal vibrating power of left and right directions is absorbed, and yielding rubber ball can absorb horizontal vibrating power in the front-back direction, is reduced
The damage that four-arm spiral antenna is subject to by vibrations；
2, this kind of double-frequency broadband four-arm spiral antenna by be equipped with second spring, rotating bar, sliding bar can to pcb board with
The shaking force of cylindric solid dielectric vertical direction suffered in transportational process provides buffering, further reduces four arms
The damage that helical antenna is subject to by vibrations.
Description of the drawings
Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality
Novel embodiment for explaining the utility model, does not constitute limitations of the present invention together.In the accompanying drawings：
Fig. 1 be the utility model proposes a kind of double-frequency broadband four-arm spiral antenna structural schematic diagram；
Fig. 2 be the utility model proposes a kind of double-frequency broadband four-arm spiral antenna the first damping trough vertical view.
In figure：1-PCB plates, 2- cylindrical shapes solid dielectric, 3- monopoles radiation arm, 4- support bases, the first damping troughs of 5-,
6- snubber blocks, the second damping troughs of 7-, 8- movable blocks, 9- decoupling rods, 10- second springs, the first springs of 11-, 12- third dampings
Slot, 13- slide bars, 14- yielding rubbers ball, 15- connecting rods, 16- sets frame, 17- connecting rods, 18- dampings frame, 19- fixed links, the bottoms 20-
Block, 21- jacking blocks, 22- sliding shoes, 23- sliding bars, 24- rotating bars.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Referring to Fig.1-2, a kind of double-frequency broadband four-arm spiral antenna, including pcb board 1, the top of pcb board 1 are fixedly connected with
Cylindric solid dielectric 2, spirally around printing, there are four monopole radiation arms 3, PCB for the wall outer surface of cylindric medium 2
1 bottom side of plate is equipped with support base 4, and 4 top middle portion of support base is equipped with the first damping trough 5, and the center bottom of pcb board 1, which is fixed, to be connected
It is connected to snubber block 6, snubber block 6 is located in the first damping trough 5 and the bottom end of snubber block 6 is slidably connected with 5 bottom wall of the first damping trough,
The second damping trough 7 is equipped on first damping trough, 5 left and right sides side wall, two 7 one end of the second damping trough are equipped with movable block 8,
Decoupling rod 9 is equipped with inside two movable blocks 8, the 7 interior and other end of the second damping trough and snubber block 6 are stretched into one end of decoupling rod 9
It is fixedly connected, 9 outer sheath of decoupling rod of 8 side of movable block is equipped with the first spring 11, on 5 front and rear sides side wall of the first damping trough
Equipped with third damping trough 12, horizontal in third damping trough 12 to be equipped with slide bar 13,13 one end of slide bar is equipped with yielding rubber ball 14, slide bar
13 other ends are fixedly connected with connecting rod 15 and one end of connecting rod 15 is fixedly connected with snubber block 6, this kind of four arm spiral of double-frequency broadband
Antenna exists to pcb board 1 and cylindric solid dielectric 2 by being equipped with the first damping trough 5, the first spring 11, yielding rubber ball 14
The shaking force of suffered horizontal direction provides cushioning effect in transportational process, and the first spring 1 can be to the horizontal vibrating of left and right directions
Power is absorbed, and yielding rubber ball 14 can absorb horizontal vibrating power in the front-back direction, reduce four-arm spiral antenna because
The damage for shaking and being subject to.
The outer sheath of support base 4 is equipped with set frame 16, and sole piece 20,4 bottom end of support base are equipped in the middle part of set 16 inner bottom wall of frame
Middle part is fixedly connected with jacking block 21, and level is equipped with connecting rod 17 between covering 16 both sides side wall of frame, and the both ends outside of connecting rod 17 is
Equipped with damping frame 18,17 left and right sides of connecting rod is arranged with sliding shoe 22, and the upper and lower ends of 22 side of sliding shoe are equipped with admittedly
Fixed pole 19, two fixed links 19 are stretched into damping frame 18 and are fixedly connected with the sliding bar 23 for being set in 17 outside of connecting rod,
The upper and lower ends of 23 side of sliding bar are equipped with second spring 10, the upper and lower ends of sliding bar 23 roof with damping frame 18 respectively
It is slidably connected with bottom wall, the both ends of second spring 10 are fixedly connected with sliding bar 23, set frame 16 respectively, and two sliding shoes 22 are cut with scissors
Chain link there are two rotating bar 24 and two rotating bars 24 respectively with jacking block 21 and 20 hinge connection of sole piece, slide bar 13 and connecting rod 15
It is integrally formed, this kind of double-frequency broadband four-arm spiral antenna can be right by being equipped with second spring 10, rotating bar 24, sliding bar 23
Pcb board 1 and the shaking force of 2 vertical direction suffered in transportational process of cylindric solid dielectric provide buffering, further
Reduce the damage that four-arm spiral antenna is subject to by vibrations.
Place is not described in detail for the utility model, is the known technology of those skilled in the art.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of double-frequency broadband four-arm spiral antenna, it is characterised in that：Including pcb board (1), the top of the pcb board (1) is fixed
It is connected with cylindric solid dielectric (2), spirally there are four monopoles around printing for the wall outer surface of the cylindrical shape medium (2)
Sub- radiation arm (3), pcb board (1) bottom side are equipped with support base (4), and support base (4) top middle portion subtracts equipped with first
Slot (5) is shaken, the center bottom of the pcb board (1) is fixedly connected with snubber block (6), and the snubber block (6) is located at the first damping trough
(5) in the and bottom end of snubber block (6) is slidably connected with the first damping trough (5) bottom wall, side at left and right sides of first damping trough (5)
The second damping trough (7) is equipped on wall, two described second damping trough (7) one end are equipped with movable block (8), two activities
It is equipped with decoupling rod (9) inside block (8), one end of the decoupling rod (9) is stretched into the second damping trough (7) and the other end and damping
Block (6) is fixedly connected, and decoupling rod (9) outer sheath of movable block (8) side is equipped with the first spring (11), first damping
Third damping trough (12) is equipped on the side wall of slot (5) front and rear sides, level is equipped with slide bar (13) in the third damping trough (12),
Described slide bar (13) one end is equipped with yielding rubber ball (14), and slide bar (13) other end is fixedly connected with connecting rod (15) and connecting rod
(15) one end is fixedly connected with snubber block (6).
2. double-frequency broadband four-arm spiral antenna according to claim 1, it is characterised in that：Outside the support base (4)
Side is arranged with frame (16), is equipped with sole piece (20) in the middle part of set frame (16) inner bottom wall, support base (4) center bottom is solid
Surely it is connected with jacking block (21), level is equipped with connecting rod (17) between the side wall of set frame (16) both sides, the connecting rod (17)
It is equipped with damping frame (18) on the outside of both ends, sliding shoe (22), the sliding shoe are arranged at left and right sides of the connecting rod (17)
(22) upper and lower ends of side are equipped with fixed link (19), two fixed links (19) stretch into damping frame (18) and with set
It is located at the sliding bar (23) on the outside of connecting rod (17) to be fixedly connected, the upper and lower ends of sliding bar (23) side are equipped with second
Spring (10).
3. double-frequency broadband four-arm spiral antenna according to claim 2, it is characterised in that：Above and below the sliding bar (23)
Roof of the both ends respectively with damping frame (18) is slidably connected with bottom wall.
4. double-frequency broadband four-arm spiral antenna according to claim 2, it is characterised in that：The two of the second spring (10)
End is fixedly connected with sliding bar (23), set frame (16) respectively.
5. double-frequency broadband four-arm spiral antenna according to claim 2, it is characterised in that：Two sliding shoes (22) are equal
Hinge connection there are two rotating bar (24) and two rotating bars (24) respectively with jacking block (21) and sole piece (20) hinge connection.
6. double-frequency broadband four-arm spiral antenna according to claim 1, it is characterised in that：The slide bar (13) and connecting rod
(15) it is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820118077.2U CN207967278U (en) | 2018-01-24 | 2018-01-24 | Double-frequency broadband four-arm spiral antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820118077.2U CN207967278U (en) | 2018-01-24 | 2018-01-24 | Double-frequency broadband four-arm spiral antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207967278U true CN207967278U (en) | 2018-10-12 |
Family
ID=63734877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820118077.2U Expired - Fee Related CN207967278U (en) | 2018-01-24 | 2018-01-24 | Double-frequency broadband four-arm spiral antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207967278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110892578A (en) * | 2018-12-04 | 2020-03-17 | 深圳市大疆创新科技有限公司 | RTK antenna module and unmanned vehicles |
-
2018
- 2018-01-24 CN CN201820118077.2U patent/CN207967278U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110892578A (en) * | 2018-12-04 | 2020-03-17 | 深圳市大疆创新科技有限公司 | RTK antenna module and unmanned vehicles |
| WO2020113416A1 (en) * | 2018-12-04 | 2020-06-11 | 深圳市大疆创新科技有限公司 | Rtk antenna assembly and unmanned aerial vehicle |
| CN110892578B (en) * | 2018-12-04 | 2022-04-08 | 深圳市大疆创新科技有限公司 | RTK antenna module and unmanned vehicles |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181012 Termination date: 20210124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |